Smart Doctor on Instagram: "3D Cardiac Cycle Animation 💓 - - An in-depth visual exploration of the human heart's internal structure. This video highlights the four chambers, valves, and major blood vessels (Aorta, Pulmonary Artery, and Vena Cava), demonstrating the rhythmic flow of oxygenated and deoxygenated blood through a high-quality 3D medical simulation. For anyone who is confused by the blue color: this “blue” blood is actually dark red in real life. We simply color it blue here to clear